DE510647C - Device for changing the tension of springs, which serve as a counterbalance for the slide of vertical milling machines - Google Patents
Device for changing the tension of springs, which serve as a counterbalance for the slide of vertical milling machinesInfo
- Publication number
- DE510647C DE510647C DEB138855D DEB0138855D DE510647C DE 510647 C DE510647 C DE 510647C DE B138855 D DEB138855 D DE B138855D DE B0138855 D DEB0138855 D DE B0138855D DE 510647 C DE510647 C DE 510647C
- Authority
- DE
- Germany
- Prior art keywords
- shaft
- coupling
- coupling half
- sprocket
- tension
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0017—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts
- B23Q11/0025—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts using resilient means, e.g. springs, hydraulic dampers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Description
Es ist bekannt, das Gewicht des Fräserschlittens einer Vertikalfräsmaschine mit Hilfe einer innerhalb des Maschinenständers angeordneten Feder auszugleichen. Es bestehen gewisse Schwierigkeiten bei diesem Ausgleich, sofern die Federn verhältnismäßig stark sind und daher einer genauen Einstellung der Vorspannung Hindernisse in den Weg legen.It is known to use the weight of the milling carriage of a vertical milling machine Compensate with the help of a spring arranged inside the machine frame. There are certain difficulties in this compensation, provided the springs are proportionate are strong and therefore a precise adjustment of the preload obstacles in the Put away.
ίο Die Erfindung bezweckt die Beseitigung dieses Übelstandes und besteht im wesentlichen
darin, daß die Feder an einer Kupplungshälfte angreift, die undrehbar, aber axial verschiebbar mit einer ortsfest gelagerten
drehbaren Welle verbunden ist, während die andere Kupplungshälfte lose auf der Welle sitzt und durch ein Kupplungsglied mit dem Getriebe zur Verstellung des
Fräserschlittens in Verbindung steht.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt. Es zeigt:ίο The invention aims to eliminate this drawback and consists essentially in the fact that the spring acts on a coupling half, which is non-rotatably but axially displaceably connected to a stationary rotatable shaft, while the other coupling half sits loosely on the shaft and through a coupling member is in connection with the gear for adjusting the milling carriage.
An embodiment of the invention is shown in the drawing. It shows:
Abb. ι die Umrisse des oberen Teiles einer Vertikalfräsmaschine,Fig. Ι the outline of the upper part of a vertical milling machine,
Abb. 2 einen senkrechten Schnitt durch den Maschinenständer in verschiedenen Schnittebenen, Fig. 2 a vertical section through the machine frame in different cutting planes,
Abb. 2a eine Einzelheit.Fig. 2a a detail.
Der am Ständer α auf und nieder bewegliche Fräserschlitten b trägt in bekannter Weise eine Zahnstange c, in welche ein Ritzel d eingreift. Dieses ist fest auf einer Welle e aufgekeilt, auf der ebenfalls fest ein Kettenrad / befestigt ist, das mit einem zweiten Kettenrad h durch eine endlose Kette g verbunden ist, das lose drehbar auf einer Welle i sitzt und gegen Verschieben in axialer Richtung durch einen Wellenbund / gesichert ist. Dieses Kettenrad h ist als Hälfte einer Kupplung /e ausgebildet, deren andere Hälfte m ebenfalls als Kettenrad ausgebildet ist und auf der Welle ζ undrehbar, aber axial verschiebbar angeordnet ist. Die Welle i ist im Maschinengestell drehbar, aber durch die Stellringe η gegen axiale Verschiebung gesichert. Auf der der Kupplung benachbarten Seite ist die Welle i in einer in der Bohrung 0 axial verschiebbaren Hülse ρ drehbar gelagert. Die Welle trägt an diesem Ende ein Gewinde q, auf dem ein mit Hilfe einer Schraube r zu sichernder Druckring s sitzt, und am Ende einen Vierkant t. Die Kupplung k ist in Form von zwei Sp'itzzahnkränzen ausgebildet, deren Abwicklung aus Abb. 2a hervorgeht. The milling carriage b , which can be moved up and down on the stand α, carries in a known manner a rack c, in which a pinion d engages. This is firmly keyed on a shaft e , on which a sprocket / is also firmly attached, which is connected to a second sprocket h by an endless chain g , which sits loosely rotatably on a shaft i and against displacement in the axial direction by a shaft collar / is secured. This chain wheel h is designed as half of a clutch / s, the other half m of which is also designed as a chain wheel and is arranged on the shaft ζ so as to be non-rotatable but axially displaceable. The shaft i can be rotated in the machine frame, but is secured against axial displacement by the adjusting rings η. On the side adjacent to the coupling, the shaft i is rotatably mounted in a sleeve ρ that is axially displaceable in the bore 0. At this end the shaft has a thread q, on which a pressure ring s to be secured with the aid of a screw r sits, and at the end a square t. The coupling k is designed in the form of two pointed tooth rings, the development of which is shown in Fig. 2a.
Auf dem Zahnkranz der Kupplungshälfte in ist eine zweite Kette u aufgewickelt, an welcher die Ausgleichsfeder ν angreift, die im Maschinengestell in beliebiger Weise befestigt ist.On the ring gear of the coupling half in a second chain u is wound, on which the compensating spring ν engages, which is fastened in any way in the machine frame.
Soll die Spannung der Feder verändert werden, so wird zunächst nach Lösung der Schraube r der Druckring s herausgeschraubt, dann mit Hilfe eines Windeeisens am Vierkant t die Welle i gefaßt. Da die lose aufIf the tension of the spring is to be changed, the pressure ring s is first unscrewed after loosening the screw r , then the shaft i is gripped with the help of a winding iron on the square t. Because the loose on
Welle i sitzende Kupplungshälfte h durch die Kette g vom Schlitten festgehalten wird, die Kupplüngshälftem sich aber mit der-Wellet dreht, so schiebt sich diese Kupplungshälfte m infolge der Steigung der Spitzenzähne aus der anderen Kupplungshälfte h axial heraus. Die Kupplungshälften sind jetzt voneinander frei und durch Drehung der Welle i mittels eines Windeeisens kann die FederspannungShaft i-fitting coupling half h g through the chain is held by the carriage, but the Kupplüngshälfte m with the-Wellet rotate this coupling half so pushes m due to the slope of the tip of teeth of the other coupling half h out axially. The coupling halves are now free from each other and the spring tension can be applied by turning the shaft i by means of a winding iron
ίο verändert werden. Ist die richtige Spannung durch Drehung der Welle i erreicht, dann wird die Druckmutter s wieder angezogen. Sie drückt damit die Hülse p, welche vorher herausgeschoben war, wieder nach innen und bringt diese Kupplungshälfte m wieder in Eingriff mit der anderen Kupplungshälfte h. Sobald der Eingriff hergestellt ist, kann das Windeeisen losgelassen wenden. Die.Druckmutter wird vollständig festgezogen undίο be changed. If the correct tension is achieved by turning the shaft i , then the pressure nut s is tightened again. It pushes the sleeve p, which was previously pushed out, back inwards and brings this coupling half m back into engagement with the other coupling half h. As soon as the operation has been made, the winding iron can be released and turned. The pressure nut is fully tightened and
ao durch die Schraube wieder gesichert.ao secured again by the screw.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB138855D DE510647C (en) | 1928-08-14 | 1928-08-14 | Device for changing the tension of springs, which serve as a counterbalance for the slide of vertical milling machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB138855D DE510647C (en) | 1928-08-14 | 1928-08-14 | Device for changing the tension of springs, which serve as a counterbalance for the slide of vertical milling machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE510647C true DE510647C (en) | 1930-10-21 |
Family
ID=6999512
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB138855D Expired DE510647C (en) | 1928-08-14 | 1928-08-14 | Device for changing the tension of springs, which serve as a counterbalance for the slide of vertical milling machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE510647C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2983199A (en) * | 1957-05-29 | 1961-05-09 | Giddings & Lewis | Machine tool counter-balance |
DE1259177B (en) * | 1964-11-05 | 1968-01-18 | Paolo Chiaia | Machine tool, in particular a milling machine, with a console guided vertically on the machine stand and a device to facilitate console adjustment |
-
1928
- 1928-08-14 DE DEB138855D patent/DE510647C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2983199A (en) * | 1957-05-29 | 1961-05-09 | Giddings & Lewis | Machine tool counter-balance |
DE1259177B (en) * | 1964-11-05 | 1968-01-18 | Paolo Chiaia | Machine tool, in particular a milling machine, with a console guided vertically on the machine stand and a device to facilitate console adjustment |
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